Ascension St John Hospital Heliport HeliportPrivate
55MI · Detroit, MI · 613 ft elevation · Non-towered
Airport information
- FAA LID
- 55MI
- Coordinates
- 42.4201, -82.9167
- Elevation
- 613 ft MSL
- Sectional chart
- DETROIT
- Airport use
- Private
- Control tower
- No
- ARTCC
- CLEVELAND (ZOB)
- Flight service (FSS)
- LANSING · 122.2 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 2020/12
- Distance from city
- 8 NE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-23
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:20 AM | 09:20Z |
| Sunrise | 05:55 AM | 09:55Z |
| Sunset | 09:13 PM | 01:13Z |
| Evening civil twilight Loggable night begins | 09:47 PM | 01:47Z |
Plan a flight from 55MI
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Headings shown are true (magnetic variation unavailable).
Communication frequencies
Tower & ground
| CTAF | 122.9 |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| MTC · Selfridge | TACAN | 133.70 | r204° / 12.2 NM |
| DXO · Detroit | VOR-DME | 113.40 | r064° / 23.5 NM |
| SVM · Salem | VORTAC | 114.30 | r091° / 30 NM |
| PSI · Pontiac | VORTAC | 111.00 | r125° / 32 NM |
| CRL · Carleton | VORTAC | 115.70 | r050° / 32.8 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 55MI. VFR sectional link above.
Ownership & management
Remarks FAA
General
- FOR CD CTC DETROIT APCH AT 734-955-1404.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 55MI in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About 55MI
Ascension St John Hospital Heliport (55MI) is a heliport in Detroit, MI, at 613 ft MSL. It has no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 55MI, refreshed from the Aviation Weather Center and FAA NASR.
Does 55MI have a control tower?
No. Ascension St John Hospital Heliport is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM on the Comms & NavAids tab.
Where is 55MI?
Ascension St John Hospital Heliport is in Detroit, MI, at an elevation of 613 ft MSL. Coordinates: 42.4201, -82.9167.
Fly out of 55MI often?
Save 55MI as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.